All heights have been referred to the station tide staff zero which is linked to fixed benchmarks; however, these benchmarks are not linked to the benchmarks used by other tide records at this site. Thus, this data set is independent.
BM No. 15
It is a 6cm bronze disk stamped CF 15, set in cement on the right corner at the front of the tide house base.
BM No. 16
It is a 6cm bronze disk stamped CF 16, set in cement at the south west corner of the warehouse located 150m south of the tide house.
BM No. 17
It is a 6cm bronze disk stamped CF 17, set in cement at the gate of the cold storage plant.
Quality Assessment by the UH Sea Level Centre
The daily and monthly means reveal no apparent changes in the reference level. Large deviations with a period from 1 to 3 days occur during the winter season associated with weather events.